Split and join arguments

See more details in Features and help file.

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⦿ This is a part of mini.nvim library. Please use this link if you want to mention this module.

⦿ All contributions (issues, pull requests, discussions, etc.) are done inside of 'mini.nvim'.

⦿ See the repository page to learn about common design principles and configuration recipes.

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If you want to help this project grow but don't know where to start, check out contributing guides of 'mini.nvim' or leave a Github star for 'mini.nvim' project and/or any its standalone Git repositories.

Demo

demo-splitjoin.mp4

Features

• Mappings and Lua functions that modify arguments (regions inside brackets between allowed separators) under cursor.

  Supported actions:

  • Toggle - split if arguments are on single line, join otherwise. Main supported function of the module. See MiniSplitjoin.toggle() in help file.
  • Split - make every argument separator be on end of separate line. See MiniSplitjoin.split() in help file.
  • Join - make all arguments be on single line. See MiniSplitjoin.join() in help file.

• Mappings are dot-repeatable in Normal mode and work in Visual mode.

• Customizable argument detection (see MiniSplitjoin.config.detect in help file):

  • Which brackets can contain arguments.
  • Which strings can separate arguments.
  • Which regions exclude when looking for separators (like inside nested brackets or quotes).

• Customizable pre and post hooks for both split and join. See split and join of MiniSplitjoin.config in help file.

• Works inside comments by using modified notion of indent. See MiniSplitjoin.get_indent_part() in help file.

• Provides low-level Lua functions for split and join at positions. See MiniSplitjoin.split_at() and MiniSplitjoin.join_at() in help file.

Notes:

• Search for arguments is done using Lua patterns (regex-like approach). Certain amount of false positives is to be expected.

• This module is mostly designed around MiniSplitjoin.toggle(). If initial split positions are on different lines, join first and then split.

• Actions can be done on Visual mode selection, which mostly present as a safety route in case of incorrect detection of initial region. It uses MiniSplitjoin.get_visual_region() which treats selection as full brackets (use va) and not vi)).

Installation

This plugin can be installed as part of 'mini.nvim' library (recommended) or as a standalone Git repository.

There are two branches to install from:

• main (default, recommended) will have latest development version of plugin. All changes since last stable release should be perceived as being in beta testing phase (meaning they already passed alpha-testing and are moderately settled).
• stable will be updated only upon releases with code tested during public beta-testing phase in main branch.

Here are code snippets for some common installation methods (use only one):

With mini.deps

Github repo	Branch	Code snippet
'mini.nvim' library	Main	Follow recommended 'mini.deps' installation
	Stable
Standalone plugin	Main	add('echasnovski/mini.splitjoin')
	Stable	add({ source = 'echasnovski/mini.splitjoin', checkout = 'stable' })

With folke/lazy.nvim

Github repo	Branch	Code snippet
'mini.nvim' library	Main	{ 'echasnovski/mini.nvim', version = false },
	Stable	{ 'echasnovski/mini.nvim', version = '*' },
Standalone plugin	Main	{ 'echasnovski/mini.splitjoin', version = false },
	Stable	{ 'echasnovski/mini.splitjoin', version = '*' },

With junegunn/vim-plug

Github repo	Branch	Code snippet
'mini.nvim' library	Main	Plug 'echasnovski/mini.nvim'
	Stable	Plug 'echasnovski/mini.nvim', { 'branch': 'stable' }
Standalone plugin	Main	Plug 'echasnovski/mini.splitjoin'
	Stable	Plug 'echasnovski/mini.splitjoin', { 'branch': 'stable' }

Important: don't forget to call require('mini.splitjoin').setup() to enable its functionality.

Note: if you are on Windows, there might be problems with too long file paths (like error: unable to create file <some file name>: Filename too long). Try doing one of the following:

• Enable corresponding git global config value: git config --system core.longpaths true. Then try to reinstall.
• Install plugin in other place with shorter path.

Default config

-- No need to copy this inside `setup()`. Will be used automatically.
{
  -- Module mappings. Use `''` (empty string) to disable one.
  -- Created for both Normal and Visual modes.
  mappings = {
    toggle = 'gS',
    split = '',
    join = '',
  },

  -- Detection options: where split/join should be done
  detect = {
    -- Array of Lua patterns to detect region with arguments.
    -- Default: { '%b()', '%b[]', '%b{}' }
    brackets = nil,

    -- String Lua pattern defining argument separator
    separator = ',',

    -- Array of Lua patterns for sub-regions to exclude separators from.
    -- Enables correct detection in presence of nested brackets and quotes.
    -- Default: { '%b()', '%b[]', '%b{}', '%b""', "%b''" }
    exclude_regions = nil,
  },

  -- Split options
  split = {
    hooks_pre = {},
    hooks_post = {},
  },

  -- Join options
  join = {
    hooks_pre = {},
    hooks_post = {},
  },
}

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